Which revision are you using? (hg identify)
$ hg identify
be428b51bf77+ tip
Please provide any additional information below.
http://golang.org/cl/2883041
The above patch will cause API breakage, but was the simplest implementation. I note
that Listen and NewListener both take *Config args.
This is useful for e.g. allowing clients to select non-default CA cert paths (or turn
off CA verification altogether) without having to re-implement most of tls.Dial()
themselves.